I chose next day air which means I should receive my pair on Monday, nike probably bit more then they can handle with all the shipments and mine being ordered next day air at 11am west coast time, I believe they sent the delayed shipping email and chose 2/23 just to be sure that I receive it without any promises they can't keep, my status is also in progress. ill keep the forum updated with this situation
also to confirm my theory, those that also got the delayed shipping email did you also chose next day air towards the middle of the day?